<script setup lang="ts">
import useStore from "@/stores";
import { watchEffect } from "vue";
import { useRoute } from "vue-router";
import GoodsItem from "./components/goods-item.vue";
const route = useRoute();
const { category, home } = useStore();
home.getBannerList();
// watchEffect也是侦听器，相当于watch代码更加简洁些
// 语法：watchEffect(callback函数)

// 1.watch需要指定具体的数据源，
// watchEffect不需要指定数据源，当回调函数数中的依赖项发生了变化，立即执行侦听
// 2.watchEffect立即执行，不需要写immediate

watchEffect(() => {
  category.getTopCategory(route.params.id as string);
});
</script>

<template>
  <div class="top-category">
    <div class="container">
      <!-- 渲染面包屑导航 -->
      <SealBread>
        <SealBreadItem to="/">首页</SealBreadItem>
        <SealBreadItem>{{ category.topCategory.name }}</SealBreadItem>
      </SealBread>

      <!-- 轮播图 -->
      <SealCarousel
        :slides="home.bannerList"
        style="height: 500px"
        loop
      ></SealCarousel>

      <!-- 所有二级分类 -->
      <div class="sub-list">
        <h3>全部分类</h3>
        <ul>
          <li v-for="item in category.topCategory.children" :key="item.id">
            <a href="javascript:;">
              <img :src="item.picture" />
              <p>{{ item.name }}</p>
            </a>
          </li>
        </ul>
      </div>

      <!-- 二级分类推荐商品楼层 -->
      <div
        class="ref-goods"
        v-for="item in category.topCategory.children"
        :key="item.id"
      >
        <div class="head">
          <h3>- {{ item.name }} -</h3>
          <p class="tag">温暖柔软，品质之选</p>
          <SealMore />
        </div>
        <div class="body">
          <GoodsItem
            v-for="goodsItem in item.goods"
            :key="goodsItem.id"
            :goods="goodsItem"
          />
        </div>
      </div>
    </div>
  </div>
</template>

<style scoped lang="less">
.top-category {
  h3 {
    font-size: 28px;
    color: #666;
    font-weight: normal;
    text-align: center;
    line-height: 100px;
  }
  .sub-list {
    margin-top: 20px;
    background-color: #fff;
    ul {
      display: flex;
      padding: 0 32px;
      flex-wrap: wrap;
      li {
        width: 168px;
        height: 160px;
        a {
          text-align: center;
          display: block;
          font-size: 16px;
          img {
            width: 100px;
            height: 100px;
          }
          p {
            line-height: 40px;
          }
          &:hover {
            color: @sealColor;
          }
        }
      }
    }
  }
  .ref-goods {
    background-color: #fff;
    margin-top: 20px;
    position: relative;
    .head {
      .seal-more {
        position: absolute;
        top: 20px;
        right: 20px;
      }
      .tag {
        text-align: center;
        color: #999;
        font-size: 20px;
        position: relative;
        top: -20px;
      }
    }
    .body {
      display: flex;
      justify-content: flex-start;
      flex-wrap: wrap;
      padding: 0 65px 30px;
    }
  }
}
</style>
